hvr-1600 fails frequently on multiple recordings

["Brian J. Murrell" <brian@interlinx.bc.ca>]

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I have a fairly new HVR-1600 which I have seen fail quite a number of
times now when it's asked to record more than one channel on a clearqam
multiplex.  This time it was 3 recordings at once.

There's nothing at all in the kernel ring buffer, just mythtv reports a
failed recording.  Usually one of the files being recorded to will only
be 376 bytes long and the rest will be 0 bytes.

I am running ubuntu's 3.2.0-27-generic kernel with what looks like a
1.5.1 cx18 driver.  The card is either a:

14f1:5b7a Conexant Systems, Inc. CX23418 Single-Chip MPEG-2 Encoder with
Integrated Analog Video/Broadcast Audio Decoder

or a:

4444:0016 Internext Compression Inc iTVC16 (CX23416) Video Decoder (rev 01)

Sorry.  I don't recall which is which any more.

But I really need to figure this out since failed recordings is causing
all kinds of disappointment around here.  I'm really at the end of my
rope with it.

Tomorrow morning I am going to demote this card to secondary duty and
promote my HVR-950Q to primary duty since I never had this kind of
grief with it.  But even in secondary duty, it could very well be
called upon to record multiple clearqam channels simultaneously so I
would really like to get this figured out.

Any ideas?

Cheers,
b.




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